src/tile_type.h

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file tile_type.h Types related to tiles. */
  11
  12 #ifndef TILE_TYPE_H
  13 #define TILE_TYPE_H
  14
  15 static const uint TILE_SIZE           = 16;                    ///< Tile size in world coordinates.
  16 static const uint TILE_UNIT_MASK      = TILE_SIZE - 1;         ///< For masking in/out the inner-tile world coordinate units.
  17 static const uint TILE_PIXELS         = 32;                    ///< Pixel distance between tile columns/rows in #ZOOM_LVL_BASE.
  18 static const uint TILE_HEIGHT         =  8;                    ///< Height of a height level in world coordinate AND in pixels in #ZOOM_LVL_BASE.
  19
  20 static const uint MAX_BUILDING_PIXELS = 200;                   ///< Maximum height of a building in pixels in #ZOOM_LVL_BASE. (Also applies to "bridge buildings" on the bridge floor.)
  21
  22 static const uint MAX_TILE_HEIGHT     = 255;                   ///< Maximum allowed tile height
  23
  24 static const uint MIN_MAX_HEIGHTLEVEL = 15;                    ///< Lower bound of maximum allowed heightlevel (in the construction settings)
  25 static const uint DEF_MAX_HEIGHTLEVEL = 30;                    ///< Default maximum allowed heightlevel (in the construction settings)
  26 static const uint MAX_MAX_HEIGHTLEVEL = MAX_TILE_HEIGHT;       ///< Upper bound of maximum allowed heightlevel (in the construction settings)
  27
  28 static const uint MIN_SNOWLINE_HEIGHT = 2;                     ///< Minimum snowline height
  29 static const uint DEF_SNOWLINE_HEIGHT = 15;                    ///< Default snowline height
  30 static const uint MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2); ///< Maximum allowed snowline height
  31
  32
  33 /**
  34  * The different types of tiles.
  35  *
  36  * Each tile belongs to one type, according whatever is build on it.
  37  *
  38  * @note A railway with a crossing street is marked as MP_ROAD.
  39  */
  40 enum TileType {
  41         MP_CLEAR,               ///< A tile without any structures, i.e. grass, rocks, farm fields etc.
  42         MP_RAILWAY,             ///< A railway
  43         MP_ROAD,                ///< A tile with road (or tram tracks)
  44         MP_HOUSE,               ///< A house by a town
  45         MP_TREES,               ///< Tile got trees
  46         MP_STATION,             ///< A tile of a station
  47         MP_WATER,               ///< Water tile
  48         MP_VOID,                ///< Invisible tiles at the SW and SE border
  49         MP_INDUSTRY,            ///< Part of an industry
  50         MP_TUNNELBRIDGE,        ///< Tunnel entry/exit and bridge heads
  51         MP_OBJECT,              ///< Contains objects such as transmitters and owned land
  52 };
  53
  54 /**
  55  * Additional infos of a tile on a tropic game.
  56  *
  57  * The tropiczone is not modified during gameplay. It mainly affects tree growth. (desert tiles are visible though)
  58  *
  59  * In randomly generated maps:
  60  *  TROPICZONE_DESERT: Generated everywhere, if there is neither water nor mountains (TileHeight >= 4) in a certain distance from the tile.
  61  *  TROPICZONE_RAINFOREST: Generated everywhere, if there is no desert in a certain distance from the tile.
  62  *  TROPICZONE_NORMAL: Everywhere else, i.e. between desert and rainforest and on sea (if you clear the water).
  63  *
  64  * In scenarios:
  65  *  TROPICZONE_NORMAL: Default value.
  66  *  TROPICZONE_DESERT: Placed manually.
  67  *  TROPICZONE_RAINFOREST: Placed if you plant certain rainforest-trees.
  68  */
  69 enum TropicZone {
  70         TROPICZONE_NORMAL     = 0,      ///< Normal tropiczone
  71         TROPICZONE_DESERT     = 1,      ///< Tile is desert
  72         TROPICZONE_RAINFOREST = 2,      ///< Rainforest tile
  73 };
  74
  75 /**
  76  * The index/ID of a Tile.
  77  */
  78 typedef uint32 TileIndex;
  79
  80 /**
  81  * The very nice invalid tile marker
  82  */
  83 static const TileIndex INVALID_TILE = (TileIndex)-1;
  84
  85 #endif /* TILE_TYPE_H */